Added SELECT version to migrations to make the query a billionth faster.
diff --git a/system/libraries/Migration.php b/system/libraries/Migration.php
index eb5161d..f89391c 100644
--- a/system/libraries/Migration.php
+++ b/system/libraries/Migration.php
@@ -322,7 +322,7 @@
 	 */
 	protected function _get_version()
 	{
-		$row = $this->db->get($this->_migration_table)->row();
+		$row = $this->db->select('version')->get($this->_migration_table)->row();
 		return $row ? $row->version : 0;
 	}